Why do PPC Tiger apps run on a Mactel Leopard system? [from an Xcode perspective]
Why do PPC Tiger apps run on a Mactel Leopard system? [from an Xcode perspective]
- Subject: Why do PPC Tiger apps run on a Mactel Leopard system? [from an Xcode perspective]
- From: "John F. Richardson" <email@hidden>
- Date: Tue, 8 Jul 2008 14:13:49 -0700
Hello,
Every now and then I use Xcode but I have a newbie type question.
I recently used setup assistant to transfer the applications folder (and
other associated folders) from a PPC architecture running Tiger 10.4.8 to a
Leopard 10.5.2 Intel architecture.
So, I have tried a reasonable number of my apps by double clicking them...
...And they execute and seem to fully initialize. Not all functions have
been exercised but I am quite pleased with Tiger PPC to Leopard Intel
forward compatibility.
So, are the apps just running in some sort of compatibility mode? For
instance Graphic Converter has an about box that mentions CFM and PPC but it
seems to behave nicely. Get info on most of the working apps does not list
(Universal). If this is not the case, what is the Xcode reason for such
success.
Could someone list a URL for such a compatibility mode documentation. Is the
phrase" compatibility mode" even a legitimate Xcode concept and if not, what
is the correct phrase for such forward compatibility behavior? Just asking a
few questions before I load the developer tools and start reading the
manual.
Note: as a reward for actually running, I would like to give kudos to Google
Earth, Software McKiev, Zbush (pixologic), Blender foundation, Lemkesoft,
Starry Night, SuperCard, Bryce 5, LightWave9,...
John F. Richardson
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